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The source of these trace elements in the case of Colombian Emeralds is believed to be from interaction of the parent hydrothermal fluid and the black shale host rock. [citation needed] Colombian emeralds are much sought after, and not just because of their superb quality and color. A gem's value depends upon its size, purity, color and brilliance.
In pre-Columbian times, mining of gold, silver, copper, emeralds, salt, coal and other minerals was already widespread. Precious metals as gold, [2] and silver, [3] platinum, nickel and coltan are located in different areas throughout the country.
Colombia is the main producer of finer quality emeralds worldwide. Colombia produced 2.7 Mcarats (540 kg) of emeralds during 2008. [15] Emerald mines are located both in the Boyacá and Cundinamarca Departments. Colombian emeralds constitute 50-95% of the world production, the numbers depending on the year, source and emeralds grade. [25] [26] [27]
The Gachalá Emerald, one of the most valuable and famous emeralds in the world, was found in 1967, in the mine called Vega de San Juan, located in Gachala, a town in Colombia, located 142 km (88 mi) from Bogota.
La Pita has been one of the biggest contributors to Colombia's emerald production at times producing more than 80% of the total output of emeralds in Colombia. La Pita was discovered when an access road was being built, the workers and owners of the land descended towards Río Minero and noticed a yellowish patch of earth accompanied by the ...
Emerald is a gemstone and a variety of the mineral beryl (Be 3 Al 2 (SiO 3) 6) colored green by trace amounts of chromium and sometimes vanadium. [1] Beryl has a hardness of 7.5–8 on the Mohs scale. [1] Most emeralds are highly included, [2] so their toughness (resistance to breakage) is classified as generally poor. Emerald is a cyclosilicate.
The Chalk Emerald is a 37.82 carats (7.564 g) rectangular step-cut emerald, mined in Muzo, Colombia. It was one of many Colombian emeralds shipped to India by the Spanish in the 16th and 17th centuries.
The Las Pavas, also called La Pava (Spanish: Mina La(s) Pava(s)), [2] is a Colombian emerald mining area that is neighboring Colombia's largest emerald mine, Puerto Arturo.It is located 200 kilometres (120 mi) northwest of the capital Bogotá in the western emerald belt of Muzo, and about 235 kilometres (146 mi) west of Chivor, which is in the eastern emerald belt.